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Stimulation of type II collagen biosynthesis and secretion in bovine chondrocytes cultured with degraded collagen

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When GLP-1, GLP-2, or VIP were added to these neuron–mast-cell co-cultures, researchers observed complete reversal of neuronal death, with all three peptides enhancing neuronal survival in a concentration-dependent manner

The result is a more firm and hydrated complexion with visibly fewer fine lines and wrinkles.